Milling, drilling, and grinding appliance for lathes



Apr. 3, 1923'.

L. NICOLE AND GRINDING APPLIANCE FOR LATHES MILLING, DRILLING,

Filed Apr. 2 1921 INVENTQR. Lam" Wade. Pa 4 7?? I irflrn Patented Apr. 3, 1923.

U N I T E ST A LOUIS NICOLE, or LoNDoN, ENGLAND.

MILLING, DRILLING, AND GRINDING ArPLIANoEro-n LA'rrIEs;

Application filed April 2, 1921. Serial N0. 458,098;

The object of the present invention is to produce an inexpensive appliance which can be readily fixed to the slide rest of a lathe and thus materially enhance the capabilities of such a machine for the production of a wide and varied range of work, and is particularly useful for small shops and amateurs requirements.

The present invention comprises essentially a vertical stem carried by a base plate adapted to be clamped or bolted to the slide rest or saddle of a lathe, a sleeve adjustably mounted to slide and be fixed on said vertical stem, a hollow spindle having its one end formed with a hollow taper to engage Morse tapered arbours for carrying grinding wheels, milling cutters, drills or the like on its one end and with means forrotating it on its other end, a sleeve provided with bearings-preferably ball bearingswithin which the said spindle is free to rotate and having means whereby it can be adjustably attached to the sleeve on the stem either parallel or horizontally with respect to said stem or at any angle thereto and with or without a slotted arm adjustably attached at right angles to said spindle bearing sleeve and carrying a stud adjustably mounted within said slotted armand on which is mounted a freely revolving toothed pinion made in one with or carrying a pulley adapted to be driven from the over head motion of the lathe or by other means, the said pinion meshing with a toothed wheel fixed on the hollow spindle.

In the accompanying drawing which illustrates thisv invention:

Fig. 1 is a view in front elevation of a milling, drilling and grindingappliance embodying the present invention,

Fig. 2 is an end View thereof, partly in section.

Fig. 3 isa view in baekyelevationzof the appliance with an attachment, for gearing. down the speed of. the rotating tool.

Fig. 4: is a broken view in frontelevation of the appliance showing-the spindle for the tool adjusted to .a-vertical-position and with gearing and. driving attachments'and Fig. 5 is a'view in plan thereof.

Throughout the views similar parts are marked with like letters of reference.

On a base or bolted .tothe slide rest or saddle one lathe is fixed a vertical stem b". On this stem 1) is so mounted a sleeve 0 astoble capable of sliding, and rotating. thereon and to be fixed in any positionitcanbe caused to assume. A convenient arrangement-is to formthe upper portion of the stem-'b with" a screw thread 6 with which amilled nut-Z9 engages. This nut 79 is free to rotate on an inner sleeve '0 but not to move up or-down on the stem without imparting. the same; movement' to the sleeve. The 'sleeve ct is prevented from rotating on the-stem b'byf' forming it with'keys e 'engagingagroove or keyway 71" formed on the stem. The outer side of the sleeve c is embraced bydlh'e sleeve 0 which issplit and furnished; with a} screw 0 so as to enablethe sleeve-c to bead-j justed angularly and locked to the-sleeve 0 The' sleeve 0 is prevented from Dior ingaxially with respect to the sleeve-c the under side or a flange thereon of the; nut b and its" lower edge engaging acolla-r locked to the sleeve c The sleeve 0 is formed in one with or carries a disc 0 to which is fixed a stud 0 On this stud c is mounted a-disc (Z which frictionallyengages the outer surface of the disc .c la nd can be locked thereto in any required position by a nutc threaded onthe free end of the stud a" The discd is formed inon-e with a sleeve d which is provided with bear ingspreferably ball bearings-for the re ception of a spindle e. This sleeve 01 is shown with plain hearings on the drawingin which case it may split andprovided with screws as shown for drawing-- itto" gether to compensate for-wear. p

The spindle e is preferably a-hollow' one having its one end formed"with-;a ---hollow taper to-engage Morse tapered-arbours for carrying grinding Wheels, milling-cutters, drills or the like on its one end and with'apulley e on' its other end for rotating it.

plate a adapted tob'e by'rea- I son'of a'fiange on its upper edge engaging" For milling or other operations requiring a lower speed the spindle e instead of being directly driven, is driven by means of change wheels, in which case, (see Fig. 3) a slotted arm 7 is adjustably attached at right angles to one end of the bearing sleeve d and is provided with a stud g adjustably mounted within the slotted or free end part of the arm. On this stud g is mounted a freely revolving toothed pinion w made in one with or carrying a driving pulley g adapted to be driven from the overhead motion of the lathe or by other means, the said pinion a; meshes with a toothed wheel 90 fixed on the spindle e. In some cases where the spindle is arranged parallel with the stem 6 (see Figs. 4C and 5) or at an angle thereto it may be necessary to interpose guide pulleys y for the driving belt or cord 2 which can be conveniently arranged by bolting an auxiliary arm h to the slotted arm f, which arm 12. carries the bearing spindle for the said pulleys.

In some cases the milling cutter or other tool may be carried between the centres of the lathes or by a headstock in which case the work to be operated upon is mounted on the spindle and a division plate is mounted on the-opposite end of the spindle, this arrangement is shown in dot and dash lines on Figs. 1 and 2 where m indicates a toothed gear wheel used as a dividing head and a spring index finger or stop 2' is then carried by the stud g in the slotted arm f.

The periphery of either one of the discs 0 or (Z may be graduated in degrees to register with a zero mark on one of said discs to furnish a ready means for setting the parts to any desired angle with relation to one vanother. In use the appliance is bolted in position on the slide rest or saddle of the lathe and for high speed drilling, grinding,

or like operations, the work to be operated upon is mounted between the lathe centres or held by a chuck or the like in a headstock, the drill, grinding wheel, or other tool is mounted within a chuck or on an appropriate arbour carried by the hollow spindle e and the sleeve d carrying it, is adjusted to the desired angular position with respect to the sleeve 0 on the vertical stem 1) and the spindle e is driven directly, i. e. without the intervention of gearing from the over head motion of the lathe or by other means, by a bolt or cord passing over the pulley 6 for milling or other operations requiring a lower speed the spindle e is driven by means of change wheels, see Figs. 3, 4t and 5 and if the milling cutter or other tool is carried between the centres of the lathe or by a headstock and the work to be operated upon is mounted on the spindle e (see'Figs. 1 and 2) the toothedgear wheel 00 is mounted on the opposite end of said spindle to act as a dividing head in conjunction with spring index finger or stop 1' carried by the stud g in the slotted arm f.

I claim 1. A milling, drilling and grinding appliance for lathes comprising a vertical stem carried by a base plate adapted to be clamped to the slide rest of a lathe, a sleeve mounted so as to be angularly adjustable on said stem and slidable thereon, a spindle adapted to carry at its one end a rotating tool and having at. its other end means for rotating it, a sleeve provided with bearings in which the spindle is free to rotate and adjustably attached to the sleeve on the stem, a slotted arm carried by and at right angles to the spindle bearing sleeve, a stud mounted adjustably on said slotted arm, and an index finger carried on said stud and adapted to engage a division plate on the spindle.

2. A milling drilling and grinding appliance for lathes comprising a vertical stem carried by a base plate adapted to be clamped to the slide rest of a lathe, a sleeve mounted so as to be angularly adjustable on said stem and slidable thereon, a spindle adapted to carry at its one end a rotating tool, a sleeve provided with bearings in which the spindle is free to rotate and adjustably attached to the sleeve on the stem, a slotted arm carried by and at right angles to the spindle bearing sleeve, a stud adjustably mounted on said slotted arm, a freely revolving toothed pinion mounted in said stud, a toothed wheel fixed on said spindle and gearing with the toothed pinion on the stud and means for driving the toothed pinion. 1

3. A milling, drilling and grinding appliance for lathes comprising a vertical stem carried by a base plate adapted to be clamped to the slide rest of a lathe, a sleeve mounted so as to be angularly adjustable on said stem and slidable thereon, a spindle adapted to carry at its one end a rotating tool, a sleeve provided with bearings in which the spindle is free to rotate and adjustably attached to the sleeve on the stem, a slotted arm carried by and at right angles to the spindle bearing sleeve a stud adjustably mounted on said slotted arm, a belt driven toothed pinion mounted on said stud, a toothed wheel fixed on said spindle and gearing with the toothed pinion on the stud, an auxiliary arm bolted to the slotted arm, a spindle carried by said auxiliary arm and guide pulleys for the belt driven toothed pinion mounted on said spindle.

4. A milling, drilling and grinding appliance for lathes comprising a vertical stem carried by a base plate adapted to be clamped to the slide rest of a lathe, an inner sleeve mounted so as to be splined to said stem, an outer sleeve angularly adjustable on said inner sleeve, means for connecting the two sleeves together so that a sleeve on the stem, a bearing formed in one 1 sliding motion imparted to the inner sleeve With the spindle bearing sleeve and pivoting is shared by the outer sleeve, screw and nut on said stud and means for fixing together mechanism for sliding the sleeve on the the outer sleeve and bearing sleeve.

stem, aspindle adapted to carry at its one end a rotating tool and having a driw- LOUIS ing pulley fixed on its other end, a sleeve Witnesses: provided With bearings in which the spindle KITTY CADMAN,

is free to rotate, a stud carried by the outer JAMES WARD. 

